Revert of Pass clip to context (patchset #8 id:180001 of https://codereview.chromium.org/936943002/)

Reason for revert:
Strange blur problems on nexus 5

Original issue's description:
> I'd really like to land this before the branch so speedy reviews are appreciated.
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/586d5d640b19860dfbbd903a5188da1bbbe87336

TBR=jvanverth@google.com,senorblanco@google.com,bsalomon@google.com,senorblanco@chromium.org,joshualitt@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/956083002

1 files changed, 22 insertions, 40 deletions

diff --git a/src/gpu/GrClipMaskManager.cpp b/src/gpu/GrClipMaskManager.cpp
index 99c74e3c3f..b28b75cefb 100644
--- a/src/gpu/GrClipMaskManager.cpp
+++ b/src/gpu/GrClipMaskManager.cpp
@@ -231,47 +231,29 @@ bool GrClipMaskManager::setupClipping(GrPipelineBuilder* pipelineBuilder,
     bool ignoreClip = clip.isWideOpen(clipSpaceRTIBounds);
     if (!ignoreClip) {
         // The clip mask manager always draws with a single IRect so we special case that logic here
-        // Image filters just use a rect, so we also special case that logic
-        switch (clip.clipType()) {
-            case GrClip::kWideOpen_ClipType:
-                // we should have handled this case above
-                SkASSERT(false);
-            case GrClip::kIRect_ClipType: {
-                initialState = GrReducedClip::kAllIn_InitialState;
-                clipSpaceIBounds = clip.irect();
-                SkNEW_INSERT_AT_LLIST_HEAD(&elements,
-                                           Element,
-                                           (SkRect::Make(clipSpaceIBounds),
-                                            SkRegion::kIntersect_Op, false));
-            } break;
-            case GrClip::kRect_ClipType: {
-                initialState = GrReducedClip::kAllIn_InitialState;
-                clipSpaceIBounds.setLTRB(SkScalarCeilToInt(clip.rect().fLeft),
-                                         SkScalarCeilToInt(clip.rect().fTop),
-                                         SkScalarCeilToInt(clip.rect().fRight),
-                                         SkScalarCeilToInt(clip.rect().fBottom));
-                SkNEW_INSERT_AT_LLIST_HEAD(&elements,
-                                           Element,
-                                           (SkRect::Make(clipSpaceIBounds),
-                                            SkRegion::kIntersect_Op, false));
-            } break;
-            case GrClip::kClipStack_ClipType: {
-                clipSpaceRTIBounds.offset(clip.origin());
-                GrReducedClip::ReduceClipStack(*clip.clipStack(),
-                                               clipSpaceRTIBounds,
-                                               &elements,
-                                               &genID,
-                                               &initialState,
-                                               &clipSpaceIBounds,
-                                               &requiresAA);
-                if (elements.isEmpty()) {
-                    if (GrReducedClip::kAllIn_InitialState == initialState) {
-                        ignoreClip = clipSpaceIBounds == clipSpaceRTIBounds;
-                    } else {
-                        return false;
-                    }
+        if (GrClip::kIRect_ClipType == clip.clipType()) {
+            initialState = GrReducedClip::kAllIn_InitialState;
+            clipSpaceIBounds = clip.irect();
+            SkNEW_INSERT_AT_LLIST_HEAD(&elements,
+                                       Element,
+                                       (SkRect::Make(clipSpaceIBounds),
+                                        SkRegion::kIntersect_Op, false));
+        } else {
+            clipSpaceRTIBounds.offset(clip.origin());
+            GrReducedClip::ReduceClipStack(*clip.clipStack(),
+                                           clipSpaceRTIBounds,
+                                           &elements,
+                                           &genID,
+                                           &initialState,
+                                           &clipSpaceIBounds,
+                                           &requiresAA);
+            if (elements.isEmpty()) {
+                if (GrReducedClip::kAllIn_InitialState == initialState) {
+                    ignoreClip = clipSpaceIBounds == clipSpaceRTIBounds;
+                } else {
+                    return false;
                 }
-            } break;
+            }
         }
     }